| details |
Early Danian |
Late Thanetian |
Virginia |
Gibson,T.G. et al. Biostratigraphy of the Tertiary strata of the core. |
1980 |
| details |
Thanetian |
|
Virginia |
Frederiksen,N.O. Lower Tertiary pollen biostratigraphy Maryland and Virginia. (In: Cretaceous and Tertiary Stratigraphy, Paleontology and Structure, Southwestern Maryland and Northeastern Virginia. N.O.Frederiksen and K.Krafft, editors) |
1984 |
| details |
Late Paleocene |
Early Eocene |
Virginia |
Frederiksen,N.O. Upper Paleocene and Lowermost Eocene Angisperm pollen biostratigraphy of the eastern Gulf coast and Virginia |
1998 |
| details |
Danian |
Thanetian |
Virginia |
Frederiksen,N.O. Rates of floral turnover and diversity change in the fossil record. |
1991 |